Check the content of secure file..under rsc folder/directory.
We compared the /etc/rsc/secure file with normal host but didn't find any difference.
The content is as follow:
Is this RSCD 8.7? Did you recently upgrade?
No, it is 126.96.36.199. We have nearly 7000 host nodes installed RSCD 188.8.131.52;thus upgrade will spend too much time. Is there any solution without upgrade?
I did not suggest that you upgrade any RSCD agents. The enquiry was because we have recently seen some similar errors in RSCD log after the BSA was upgraded to 8.7.
Please log a support case so that someone can spend time analysing this problem with you.